Remove unused function

src/bpmlib/utils.go

@@ -2,9 +2,7 @@ package bpmlib
 
 import (
 	"fmt"
-	"io"
 	"math"
-	"os"
 	"syscall"
 )
 
@@ -23,29 +21,6 @@ func GetArch() string {
 	return string(byteString[:indexLength])
 }
 
-func copyFileContents(src, dst string) (err error) {
-	in, err := os.Open(src)
-	if err != nil {
-		return
-	}
-	defer in.Close()
-	out, err := os.Create(dst)
-	if err != nil {
-		return
-	}
-	defer func() {
-		cerr := out.Close()
-		if err == nil {
-			err = cerr
-		}
-	}()
-	if _, err = io.Copy(out, in); err != nil {
-		return
-	}
-	err = out.Sync()
-	return
-}
-
 func stringSliceRemove(s []string, r string) []string {
 	for i, v := range s {
 		if v == r {